HCoop / hcoop / debian / openafs.git / blame
| Commit | Line | Data |
|---|---|---|
| 805e021f CE |
1 | dnl This checks for the existence of the vn_renamepath function, added in |
| 2 | dnl Solaris 11 and Solaris 10u8. | |
| 3 | dnl | |
| 4 | dnl Just trying to use the function is not sufficient for a configure test, | |
| 5 | dnl since using an undeclared function is just a warning, and we want an error. | |
| 6 | dnl Rather than try to rely on making warnings generate errors (which may | |
| 7 | dnl change depending on what compiler version we're using, or in the future | |
| 8 | dnl different compilers entirely), we detect the function by declaring an | |
| 9 | dnl incompatible prototype. If that successfully compiles, vn_renamepath | |
| 10 | dnl does not exist in the system headers, so we know it's not there. If it | |
| 11 | dnl fails, we try to compile again without the incompatible prototype, to | |
| 12 | dnl make sure we didn't fail for some other reason. If that succeeds, we know | |
| 13 | dnl we have vn_renamepath available; if it fails, something else is wrong and | |
| 14 | dnl we just try to proceed, assuming we don't have it. | |
| 15 | dnl | |
| 16 | AC_DEFUN([SOLARIS_HAVE_VN_RENAMEPATH], | |
| 17 | ||
| 18 | [AC_CACHE_CHECK([for vn_renamepath], | |
| 19 | [ac_cv_solaris_have_vn_renamepath], | |
| 20 | [AC_COMPILE_IFELSE( | |
| 21 | [AC_LANG_PROGRAM( | |
| 22 | [[#define _KERNEL | |
| 23 | #include <sys/vnode.h>]], | |
| 24 | [[void vn_renamepath(void);]])], | |
| 25 | [ac_cv_solaris_have_vn_renamepath=no], | |
| 26 | [AC_COMPILE_IFELSE( | |
| 27 | [AC_LANG_PROGRAM( | |
| 28 | [[#define _KERNEL | |
| 29 | #include <sys/vnode.h>]])], | |
| 30 | [ac_cv_solaris_have_vn_renamepath=yes], | |
| 31 | [ac_cv_solaris_have_vn_renamepath=no])])]) | |
| 32 | ||
| 33 | AS_IF([test "x$ac_cv_solaris_have_vn_renamepath" = "xyes"], | |
| 34 | [AC_DEFINE([HAVE_VN_RENAMEPATH], [1], | |
| 35 | [define if the function vn_renamepath exists])])]) |